<!DOCTYPE html>
<html lang="zh-cmn-Hans">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <meta name="description" content="网站描述">
    <meta name="keywords" content="关键字1,关键字2">
    <title>测试案例</title>
</head>
<body>
<div id="main">
    <div id="stage">
        <div id="snake">
            <div></div>
        </div>
        <div id="food">
            <div></div>
            <div></div>
            <div></div>
            <div></div>
        </div>
    </div>
    <div id="score-panel">
        <div>分数：<span id="score">0</span></div>
        <div>等级：<span id="level">1</span></div>
    </div>
</div>
</body>
</html>